diff --git a/engine/common/host.c b/engine/common/host.c
index 6c928886..da08c408 100644
--- a/engine/common/host.c
+++ b/engine/common/host.c
@@ -941,6 +941,7 @@ static void Host_RunTests( int stage )
 		TEST_LIST_1_CLIENT;
 #endif
 		Msg( "Done! %d passed, %d failed\n", tests_stats.passed, tests_stats.failed );
+		error_on_exit = tests_stats.failed >= 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 		Sys_Quit();
 	}
 }
diff --git a/engine/common/system.c b/engine/common/system.c
index 47828760..da64deed 100644
--- a/engine/common/system.c
+++ b/engine/common/system.c
@@ -53,7 +53,7 @@ GNU General Public License for more details.
 #include "library.h"
 #include "whereami.h"
 
-static int error_on_exit = 0;	// arg for exit();
+int error_on_exit = 0;	// arg for exit();
 
 /*
 ================
diff --git a/engine/common/system.h b/engine/common/system.h
index d06055f7..15f27b0f 100644
--- a/engine/common/system.h
+++ b/engine/common/system.h
@@ -41,7 +41,7 @@ NOTE: never change this structure because all dll descriptions in xash code
 writes into struct by offsets not names
 ========================================================================
 */
-
+extern int error_on_exit;
 void Sys_Sleep( int msec );
 double Sys_DoubleTime( void );
 char *Sys_GetClipboardData( void );